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DBMS > RocksDB vs. ScyllaDB vs. Splunk vs. TDengine

System Properties Comparison RocksDB vs. ScyllaDB vs. Splunk vs. TDengine

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Editorial information provided by DB-Engines
NameRocksDB  Xexclude from comparisonScyllaDB  Xexclude from comparisonSplunk  Xexclude from comparisonTDengine  Xexclude from comparison
DescriptionEmbeddable persistent key-value store optimized for fast storage (flash and RAM)Cassandra and DynamoDB compatible wide column storeAnalytics Platform for Big DataTime Series DBMS and big data platform
Primary database modelKey-value storeWide column storeSearch engineTime Series DBMS
Secondary database modelsKey-value storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.65
Rank#85  Overall
#11  Key-value stores
Score4.75
Rank#68  Overall
#5  Wide column stores
Score86.45
Rank#14  Overall
#2  Search engines
Score2.60
Rank#107  Overall
#8  Time Series DBMS
Websiterocksdb.orgwww.scylladb.comwww.splunk.comgithub.com/­taosdata/­TDengine
tdengine.com
Technical documentationgithub.com/­facebook/­rocksdb/­wikidocs.scylladb.comdocs.splunk.com/­Documentation/­Splunkdocs.tdengine.com
DeveloperFacebook, Inc.ScyllaDBSplunk Inc.TDEngine, previously Taos Data
Initial release2013201520032019
Current release8.11.4, April 2024ScyllaDB Open Source 5.4.1, January 20243.0, August 2022
License infoCommercial or Open SourceOpen Source infoBSDOpen Source infoOpen Source (AGPL), commercial license availablecommercial infoLimited free edition and free developer edition availableOpen Source infoAGPL V3, also commercial editions available
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Scylla Cloud: Create real-time applications that run at global scale with Scylla Cloud, the industry’s most powerful NoSQL DBaaS
Implementation languageC++C++C
Server operating systemsLinuxLinuxLinux
OS X
Solaris
Windows
Linux
Windows
Data schemeschema-freeschema-freeyesyes
Typing infopredefined data types such as float or datenoyesyesyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nonoyesno
Secondary indexesnoyes infocluster global secondary indicesyesno
SQL infoSupport of SQLnoSQL-like DML and DDL statements (CQL)no infoSplunk Search Processing Language for search commandsStandard SQL with extensions for time-series applications
APIs and other access methodsC++ API
Java API
Proprietary protocol (CQL) infocompatible with CQL (Cassandra Query Language, an SQL-like language)
RESTful HTTP API (DynamoDB compatible)
Thrift
HTTP RESTJDBC
RESTful HTTP API
Supported programming languagesC
C++
Go
Java
Perl
Python
Ruby
For CQL interface: C#, C++, Clojure, Erlang, Go, Haskell, Java, JavaScript, Node.js, Perl, PHP, Python, Ruby, Rust, Scala
For DynamoDB interface: .Net, ColdFusion, Erlang, Groovy, Java, JavaScript, Perl, PHP, Python, Ruby
C#
Java
JavaScript
PHP
Python
Ruby
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Rust
Server-side scripts infoStored proceduresnoyes, Luayesno
Triggersnoyesyes, via alarm monitoring
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningShardingShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesselectable replication factor infoRepresentation of geographical distribution of servers is possibleMulti-source replicationyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Tunable Consistency infocan be individually decided for each write operation
Eventual Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesno infoAtomicity and isolation are supported for single operationsno infoA 'Transaction' in Splunk has a different meaning: grouping related events into a single one for later searching
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infoin-memory tablesno
User concepts infoAccess controlnoAccess rights for users can be defined per objectAccess rights for users and rolesyes
More information provided by the system vendor
RocksDBScyllaDBSplunkTDengine
Specific characteristicsScyllaDB is engineered to deliver predictable performance at scale. It’s adopted...
» more
TDengine™ is a next generation data historian purpose-built for Industry 4.0 and...
» more
Competitive advantagesHighly-performant (efficiently utilizes full resources of a node and network; millions...
» more
High Performance at any Scale: TDengine is purpose-built for handling massive industrial...
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Typical application scenariosScyllaDB is ideal for applications that require high throughput and low latency at...
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TDengine is designed for Industrial IoT scenarios, including: Manufacturing Connected...
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Key customersDiscord, Epic Games, Expedia, Zillow, Comcast, Disney+ Hotstar, Samsung, ShareChat,...
» more
Market metricsScyllaDB typically offers ~75% total cost of ownership savings, with ~5X higher throughput...
» more
TDengine has garnered over 22,500 stars on GitHub and is used in over 50 countries...
» more
Licensing and pricing modelsScyllaDB Open Source - free open source software (AGPL) ScyllaDB Enterprise - subscription-based...
» more
TDengine OSS is an open source, cloud native time series database. It includes built-in...
» more
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Related products and services
3rd partiesSpeedb: A high performance RocksDB-compliant key-value store optimized for write-intensive workloads.
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We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
RocksDBScyllaDBSplunkTDengine
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